CN116131150A - Inflatable multifunctional PT cabinet - Google Patents
Inflatable multifunctional PT cabinet Download PDFInfo
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- CN116131150A CN116131150A CN202310387023.1A CN202310387023A CN116131150A CN 116131150 A CN116131150 A CN 116131150A CN 202310387023 A CN202310387023 A CN 202310387023A CN 116131150 A CN116131150 A CN 116131150A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/075—Earthing arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses an inflatable multifunctional PT cabinet, which belongs to the technical field of inflatable cabinets and comprises a cabinet body cable device, wherein a PT chamber is arranged at the bottom of the cabinet body, an inflatable chamber and a power chamber are arranged on the upper side of the PT chamber in parallel, a switching-on/off device is fixedly arranged in the inflatable chamber in a sealing manner, the power device is fixedly arranged in the power chamber, a first wiring terminal is fixedly arranged at the top of the inflatable chamber in a sealing manner and is electrically connected with the switching-on/off device, a second wiring terminal is fixedly arranged on a partition plate between the inflatable chamber and the PT chamber in a sealing manner, the second wiring terminal is electrically connected with the switching-on/off device, the lower end of the second wiring terminal is electrically connected with a third wiring terminal arranged on the PT device through the cable device, and a grounding wire device is arranged on the cable device. Set up the PT device in the PT room, realize high tension transmission's voltage detection through the PT device, conversion partial voltage supplies this cabinet body to use simultaneously, the effectual demand that satisfies the cabinet body.
Description
Technical Field
The invention relates to the technical field of inflatable cabinets, in particular to an inflatable multifunctional PT cabinet.
Background
With the development of society, many electric control parts are added on the gas-filled cabinet, and meanwhile, the voltage or current of high-voltage electricity in the gas-filled cabinet needs to be detected. Therefore, new equipment needs to be introduced into the inflatable cabinet, so that the voltage in the high-voltage circuit can be detected, and part of the voltage can be converted into low voltage for the inflatable cabinet. In the inflatable cabinet, the opening and closing device is arranged in a sealed inflatable chamber, but the power device is arranged outside the inflatable chamber, force is transmitted between the opening and closing device and the inflatable chamber through the transmission rod, and the inflatable chamber is easy to leak air due to the fact that the transmission rod needs to move, so that the safety performance of the cabinet is reduced due to the fact that dry insulating gas in the inflatable chamber leaks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an inflatable multifunctional PT cabinet.
The aim of the invention is realized by the following technical scheme:
the utility model provides an inflatable multifunctional PT cabinet, includes the cabinet body, plenum chamber, power chamber, PT room, divide-shut brake device, power device, PT device and cable device, the bottom of the cabinet body is provided with the PT room, plenum chamber and power chamber set up side by side the upside of PT room, divide-shut brake device seal-tightly sets up in the inside of plenum chamber, power device seal-tightly sets up in the inside of power chamber and is used for driving divide-shut brake device to realize dividing and closing, the top seal-tightly of plenum chamber is provided with first binding post, the lower extreme of first binding post with divide-shut brake device's upper wiring end electricity is connected, seal-tightly is provided with second binding post on the baffle between plenum chamber and the PT room, the upper end of second binding post is connected with divide-shut brake device's lower wiring end electricity, the lower extreme of second binding post is through cable device with the last third binding post that sets up of PT device, be provided with earth connection device on the cable device;
the cable device comprises an upper wiring insulating end, a lower wiring insulating end, a sealing plug-in end, an insulating end protecting layer, an upper conducting end, a lower conducting end, a hollow conducting tube, a conducting wire, a winding layer, an inner insulating layer, a metal shielding layer, an outer insulating layer, a high-temperature-resistant fireproof layer, an outer protecting layer and a sealing winding package component, wherein a first mounting hole penetrating through and matched with the lower end of a second wiring terminal is arranged on the wiring insulating end, the outer wiring cable is electrically connected with the second wiring terminal through the first mounting hole, one end of the upper conducting end is arranged in the first mounting hole and matched with the second wiring terminal, the other end of the upper conducting end is hermetically arranged at the bottom of the second mounting hole, the second mounting hole is arranged on the side wall of the upper wiring insulating end, the plurality of mutually parallel conductive wires form a conductive layer to wrap the outer side of the hollow conductive tube, the conductive wires are arranged parallel to the hollow conductive tube, the conductive layer is wrapped by the winding layer to be fastened, the inner insulating layer is arranged on the outer side of the winding layer, the metal shielding layer, the outer insulating layer, the high-temperature-resistant fireproof layer and the outer protective layer are sequentially arranged on the outer side of the inner insulating layer, one end of the conductive layer is arranged in a first conductive hole on the upper conductive end, one end of the outer protective layer is fixed in a second mounting hole through the sealing plug-in end, the other end of the conductive layer is arranged in a second conductive hole on the lower conductive end, the lower conductive end is fixedly arranged in a third mounting hole in a sealing manner, the outer protective layer is arranged in the third mounting hole, the third mounting hole is arranged on the lower wiring insulating end, the lower wiring insulating terminal is provided with a fourth mounting hole matched with the third wiring terminal, the third mounting hole is communicated with the fourth mounting hole, the lower conductive terminal is detachably and electrically connected with the third wiring terminal, the lower wiring insulating terminal is provided with an insulating terminal protective layer in a sealing and fixing mode, and a sealing winding package assembly is arranged between the insulating terminal protective layer and the outer protective layer.
Further, the switching-on/off device comprises an arc extinguishing assembly and a switch assembly, wherein an upper wiring end of the arc extinguishing assembly is electrically connected with a lower end of the first wiring terminal, a lower wiring end of the arc extinguishing assembly is electrically connected with an upper wiring end of the switch assembly, a lower wiring end of the arc extinguishing assembly is electrically connected with the second wiring terminal, the arc extinguishing assembly is connected with the power device through a sliding shaft, the switch assembly is connected with the power device through a rotating shaft, a sliding sealing assembly is arranged between the sliding shaft and the plenum, and a rotating sealing assembly is arranged between the rotating shaft and the plenum.
Further, the sliding seal assembly comprises a fixed sleeve, a heat insulation ring, a first elastic sealing ring, a sealing ring pressing pad, a pressing ring and a pressing adjusting piece, wherein a sliding hole matched with the sliding shaft is formed in a sealing plate between the plenum chamber and the power chamber, the sealing plate is provided with the fixed sleeve matched with the sliding hole in a sealing mode, the fixed sleeve is arranged in the power chamber, the heat insulation ring, the first elastic sealing ring and the sealing ring pressing pad are sleeved on the sliding shaft and are positioned in the fixed sleeve, the heat insulation ring is close to the side of the sealing plate, the inner wall of the pressing ring, the inner wall of the heat insulation ring and the inner wall of the sealing ring pressing pad are in clearance fit with the outer wall of the sliding shaft, the outer wall of the pressing ring, the outer wall of the heat insulation ring and the outer wall of the sealing ring pressing pad are in contact with the inner wall of the fixed sleeve, one end of the sealing ring is propped against the first elastic sealing ring or the sealing ring pressing pad is uniformly pressed on the sealing ring, and the other end of the sealing ring is uniformly pressed with the fixed sleeve through at least two pressing pieces.
Further, the rotary seal assembly comprises a rotary seal ball, a rotary seal bowl, a pressing bowl and a second elastic seal ring, a rotary seal hole matched with the rotary shaft is formed in a sealing plate between the plenum chamber and the power chamber, the rotary seal bowl matched with the rotary seal hole is arranged on the sealing plate in a sealing mode, the pressing bowl matched with the rotary seal bowl in a sealing mode is arranged on the rotary seal bowl, the rotary seal bowl and the pressing bowl are coaxially arranged with the rotary shaft, a rotary seal cavity is formed between the bottom of the rotary seal bowl and the bottom of the pressing bowl, the rotary seal ball is arranged in the rotary seal cavity and matched with the rotary seal cavity, the rotary seal ball is coaxially and fixedly arranged on the rotary shaft, a plurality of second elastic seal rings matched with the rotary seal ball in a sealing mode are fixedly arranged on the inner wall of the rotary seal cavity in a sealing mode, and the second elastic seal ring is coaxially matched with the rotary seal ball in a sealing mode.
Further, the ground wire device comprises a first ground wire, a second ground wire and a third ground wire, wherein the first ground wire is connected with the upper wiring insulation end, the second ground wire is connected with the lower wiring insulation end, and the third ground wire is connected with the outer protection layer.
Further, a fixing convex ring is arranged on the third wiring terminal, and a fixing groove matched with the fixing convex ring is arranged in the fourth mounting hole.
Further, the power device comprises a push-pull assembly and a rotating assembly, wherein the push-pull assembly is fixedly arranged in the power chamber and connected with the sliding shaft, and the rotating assembly is fixedly arranged in the power chamber and connected with the rotating shaft.
Further, the PT device comprises a voltage transformer, the voltage transformer is fixedly arranged at the bottom of the PT chamber, and the third wiring terminal is fixedly connected with the voltage transformer in a sealing manner.
Further, a lightning arrester is fixedly arranged on the partition plate between the plenum chamber and the PT chamber in a sealing manner, and the upper end of the lightning arrester is electrically connected with the upper end of the second wiring terminal.
Further, a high temperature resistant sealing coating is arranged on the inner wall of the plenum chamber.
The beneficial effects of the invention are as follows:
in this technique, set up the PT device in the PT room, realize high-voltage transmission's voltage detection through the PT device, conversion partial voltage supplies this cabinet body to use simultaneously, the effectual demand that has satisfied the cabinet body. The switching-on and switching-off device is connected with the PT device through the cable device, the connection can be realized at both ends of the cable device, the installation and the replacement are convenient, the hollow conductive tube is arranged in the cable device, dry insulating gas is injected into the cable device through the hollow conductive tube in the assembly process, air in the device can be effectively discharged, the installation performance of the cable device is higher, and meanwhile, the winding layer, the inner insulating layer, the metal shielding layer, the outer insulating layer, the high-temperature-resistant fireproof layer, the outer protective layer and the sealing winding package component are arranged, so that the insulation, the fireproof performance and the dampproof performance of the cable device are further stronger. The ground wire device is arranged to prevent the cable device from leaking electricity, and ensures that the cable device can reach the level of direct touch in the power transmission process. The sliding seal assembly is composed of a fixed sleeve, a heat insulation ring, a first elastic sealing ring, a sealing ring pressing pad, a pressing ring and a pressing adjusting piece, the pressing adjusting piece is used for adjusting the force of the pressing ring, the pressing ring is used for enabling the first elastic sealing ring to achieve better sealing, then the sealing ring pressing pad is used for separating the first elastic sealing ring, multiple sealing effects are achieved, and the fact that the plenum chamber cannot leak air is guaranteed. The rotary sealing assembly is composed of the rotary sealing ball, the rotary sealing bowl, the pressing bowl and the second elastic sealing ring, and the arrangement mode can realize sealing on a plurality of surfaces, so that the sealing effect is guaranteed to be better. Overvoltage in the PT cabinet can be eliminated by arranging the lightning arrester.
Drawings
FIG. 1 is a connection structure diagram of an inflatable PT cabinet;
FIG. 2 is a connection block diagram between the cable assembly and the second connection terminal;
FIG. 3 is a connection block diagram between the cable assembly and the third terminal block;
FIG. 4 is a cross-sectional structural view of the cable apparatus;
FIG. 5 is a connection block diagram of the sliding seal assembly;
FIG. 6 is a connection block diagram of the rotary seal assembly;
FIG. 7 is an enlarged connection block diagram at A of FIG. 3;
in the figure, 1-cabinet, 2-plenum, 3-power room, 4-PT room, 5-first wiring terminal, 6-second wiring terminal, 7-third wiring terminal, 8-upper wiring insulating terminal, 9-lower wiring insulating terminal, 10-sealed plug terminal, 11-insulating terminal protection layer, 12-upper conductive terminal, 13-lower conductive terminal, 14-hollow conductive tube, 15-conductive wire, 16-winding layer, 17-inner insulating layer, 18-metal shielding layer, 19-outer insulating layer, 20-high temperature resistant fire-proof layer, 21-outer protection layer, 22-first mounting hole, 23-external cable, 24-second mounting hole, 25-first conductive hole, 26-second conductive hole, 27-third mounting hole, 28-fourth mounting hole, 29-arc extinguishing component, 30-switch component, 31-sliding shaft, 32-rotating shaft, 33-fixed sleeve, 34-heat insulation ring, 35-first elastic sealing ring, 36-sealing ring pressing pad, 37-pressing ring, 38-pressing adjusting piece, 39-sliding hole, 41-rotating sealing ball, 42-rotating sealing bowl, 43-pressing bowl, 44-second elastic sealing ring, 45-rotating hole, 46-rotating through hole, 47-first grounding wire, 48-second grounding wire, 49-third grounding wire, 50-fixed convex ring, 51-fixed groove, 52-push-pull component, 53-rotating component, 54-voltage transformer, 55-lightning arrester, 56-high temperature resistant sealing coating, 57-insulating wire cladding, 58-semiconducting wire cladding.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution:
the utility model provides an inflatable multifunctional PT cabinet, including cabinet body 1, plenum chamber 2, power room 3, PT room 4, divide-shut brake device, power device, PT device and cable device, the bottom of cabinet body 1 is provided with PT room 4, plenum chamber 2 and power room 3 set up in the upside of PT room 4 side by side, divide-shut brake device seal fixed setting is in the inside of plenum chamber 2, power device fixed setting is in the inside of plenum chamber 3 and is used for driving divide-shut brake device to realize dividing and closing, the top seal fixed of plenum chamber 2 is provided with first binding post 5, the lower extreme of first binding post 5 is connected with divide-shut brake device's upper wiring terminal electricity, seal fixed is provided with second binding post 6 on the baffle between plenum chamber 2 and the PT room 4, the upper end of second binding post 6 is connected with divide-shut brake device's lower wiring terminal electricity, the lower extreme of second binding post 6 is connected with the third binding post 7 electricity that sets up on the PT device through cable device, be provided with earth connection wire device on the cable device. In this technical scheme, divide into plenum chamber 2, power room 3 and PT room 4 in the cabinet body 1, fill insulating dry gas in the plenum chamber 2, divide-shut brake device setting is in plenum chamber 2, and the whole high tension transmission line of convenient control realizes the break-make like this, and power device setting is in power room 3, and power device belongs to prior art's energy storage equipment, mainly in order to make divide-shut brake device realize the break-make function in the twinkling of an eye. The PT device is used for measuring the voltage in the high-voltage transmission process and reducing partial voltage to low voltage, and the low-voltage common equipment is used. The cable device is used for connecting the PT device with the high-voltage transmission line, the grounding wire device is used for preventing the cable device from electric leakage, and the cable device can reach the level of direct touch in the transmission process. The first connection terminal 5, the second connection terminal 6 and the third connection terminal 7 are high-voltage wire connection ends in the prior art.
The cable device comprises an upper wiring insulating terminal 8, a lower wiring insulating terminal 9, a sealed plug-in terminal 10, an insulating terminal protection layer 11, an upper conductive terminal 12, a lower conductive terminal 13, a hollow conductive tube 14, a conductive wire 15, a winding layer 16, an inner insulating layer 17, a metal shielding layer 18, an outer insulating layer 19, a high-temperature-resistant fireproof layer 20, an outer protection layer 21 and a sealed winding package assembly, wherein a first mounting hole 22 penetrating through and matched with the lower end of a second wiring terminal 6 is arranged on the upper wiring insulating terminal 8, an external cable 23 is electrically connected with the second wiring terminal 6 through the first mounting hole 22, one end of the upper conductive terminal 12 is arranged in the first mounting hole 22 and matched with the second wiring terminal 6, the other end of the upper conductive terminal 12 is arranged at the bottom of a second mounting hole 24 in a sealing way, the second mounting hole 24 is arranged on the side wall of the upper wiring insulating terminal 8, the plurality of mutually parallel conducting wires 15 form a conducting layer to wrap the outer side of the hollow conducting tube 14, the conducting wires 15 are arranged parallel to the hollow conducting tube 14, the conducting layer is wrapped by the winding layer 16 to be fastened, an inner insulating layer 17 is arranged on the outer side of the winding layer 16, a metal shielding layer 18, an outer insulating layer 19, a high-temperature-resistant fireproof layer 20 and an outer protective layer 21 are sequentially arranged on the outer side of the inner insulating layer 17, one end of the conducting layer is arranged in a first conducting hole 25 on the upper conducting end 12, one end of the outer protective layer 21 is fixed in a second mounting hole 24 through a sealed plug end 10, the other end of the conducting layer is arranged in a second conducting hole 26 on the lower conducting end 13, the lower conducting end 13 is fixedly arranged in a third mounting hole 27 in a sealed manner, the outer protective layer 21 is arranged in the third mounting hole 27, the third mounting hole 27 is arranged on the lower wiring insulating end 9, the lower wiring insulating terminal 9 is provided with a fourth mounting hole 28 matched with the third wiring terminal 7, the third mounting hole 27 is communicated with the fourth mounting hole 28, the lower conductive terminal 13 and the third wiring terminal 7 are detachably and electrically connected, the lower wiring insulating terminal 9 is provided with an insulating terminal protective layer 11 in a sealing and fixing sleeve manner, and a sealing winding package assembly is arranged between the insulating terminal protective layer 11 and the outer protective layer 21. In this technical solution, the upper terminal insulating terminal 8 and the lower terminal insulating terminal 9 are both terminals for installation, the upper conductive terminal 12 is disposed in the upper terminal insulating terminal 8 and is used for fixing one end of the conductive wire 15, and the lower conductive terminal 13 is disposed at the other end of the lower terminal insulating terminal 9 and is used for fixing the conductive wire 15. The hollow conductive tube 14, the conductive wire 15, the winding layer 16, the inner insulating layer 17, the metal shielding layer 18, the outer insulating layer 19, the high-temperature-resistant fireproof layer 20 and the outer protective layer 21 together form an electrifying connecting wire, in the installation process, one end of the electrifying connecting wire is firstly inserted into the second installation hole 24, the electrifying wire formed by the hollow conductive tube 14 and the conductive wire 15 is inserted into the first installation hole 25, then the sealing is carried out through the sealed plug-in end 10, insulating dry gas is injected into the second installation hole 24 through the hollow conductive tube 14 after the sealing, the second installation hole 24 is discharged through a gap between the conductive wires 15, then the other end of the electrifying wire is inserted into the second conduction hole 26 on the lower conductive end 13, the insulating dry gas is simultaneously introduced in the insertion process, then the electrifying connecting wire is slowly inserted into the third installation hole 27, and finally the electrifying connecting wire is sealed and fixed in the third installation hole 27 through the sealed winding package assembly. The sealed package assembly comprises an insulating wire cladding 57 and a semi-conducting wire cladding 58, the insulating end protecting layer 11 directly coats the outer side of the lower wiring insulating end 9, the insulating wire cladding 57 coats the connecting part of the insulating end protecting layer 11 and the outer protecting layer 21, the semi-conducting wire cladding 58 coats the outer side of the insulating wire cladding 57, and the insulating wire cladding 57 is respectively contacted with the insulating end protecting layer 11 and the outer protecting layer 21. The hollow conductive tube 14, the conductive wires 15 and the metal shielding layer 18 are all made of copper materials, the winding layer 16 is used for preventing the conductive layers formed by the conductive wires 15 from loosening, the winding layer 16 is made of conductive metal for winding, the metal shielding layer 18 is used for preventing the outer side from drying, so that the transmission of the conductive wires is unstable, and a large error occurs in the measured result. The inner insulating layer 17 and the outer insulating layer 19 are both made of insulating rubber, the high-temperature-resistant fireproof layer 20 is made of fireproof materials, and the outer protective layer 21 is made of rubber.
In some embodiments, the switching-on/off device comprises an arc extinguishing assembly 29 and a switch assembly 30, wherein an upper terminal of the arc extinguishing assembly 29 is electrically connected with a lower end of the first wiring terminal 5, a lower terminal of the arc extinguishing assembly 29 is electrically connected with an upper terminal of the switch assembly 30, a lower terminal of the arc extinguishing assembly 29 is electrically connected with the second wiring terminal 6, the arc extinguishing assembly 29 is connected with the power device through a sliding shaft 31, the switch assembly 30 is connected with the power device through a rotating shaft 32, a sliding sealing assembly is arranged between the sliding shaft 31 and the plenum chamber 2, and a rotating sealing assembly is arranged between the rotating shaft 32 and the plenum chamber 2. In this technical scheme, arc extinguishing subassembly 29 and switch module 30 are prior art, and arc extinguishing subassembly 29 and switch module 30 are provided with three respectively. The arc extinguishing assembly 29 is used for eliminating electric arcs in the switching-on and switching-off process, and the switch assembly 30 is used for switching on and switching off high-voltage power transmission. The arc extinguishing assembly 29 is connected to the push-pull assembly 52 through a sliding shaft 31, and the switching assembly 30 is connected to the rotating assembly 53 through a rotating shaft 32.
In some embodiments, the sliding seal assembly comprises a fixed sleeve 33, a heat insulation ring 34, a first elastic sealing ring 35, a sealing ring pressing pad 36, a pressing ring 37 and a pressing adjusting piece 38, a sliding hole 39 matched with the sliding shaft 31 is formed in a sealing plate between the plenum chamber 2 and the power chamber 3, the fixed sleeve 33 matched with the sliding hole 39 is arranged on the sealing plate in a sealing mode, the fixed sleeve 33 is arranged in the power chamber 3, the heat insulation ring 34, the first elastic sealing ring 35 and the sealing ring pressing pad 36 are all sleeved on the sliding shaft 31 and are positioned in the fixed sleeve 33, the heat insulation ring 34 is arranged close to the sealing plate side, the inner wall of the pressing ring 37, the inner wall of the heat insulation ring 34 and the inner wall of the sealing ring pressing pad 36 are in clearance fit with the outer wall of the sliding shaft 31, the outer wall of the pressing ring 37, the outer wall of the heat insulation ring 34 and the outer wall of the sealing ring pressing pad 36 are all in contact with the inner wall of the fixed sleeve 33, the first elastic sealing ring 35 and the sealing ring pressing pad 36 are arranged in a clearance, one end of the pressing ring 37 abuts against the first elastic sealing ring 35 or the sealing ring pressing pad 36, and the other end of the pressing ring 37 is connected with the fixed sleeve 33 through at least two uniformly arranged pressing adjusting pieces 38. In this embodiment, the fixing sleeve 33 is a circular sleeve, and the cross sections of the first elastic sealing ring 35, the sealing ring pressing pad 36 and the pressing ring 37 are all circular. The heat insulation ring 34 is arranged to reduce heat transfer to the first elastic sealing ring 35, the mounting end of the fixed sleeve 33 is arranged on the sliding hole 39 through welding sealing, a plurality of first elastic sealing rings 35 and a plurality of sealing ring pressing pads 36 are arranged in the fixed sleeve 33, the plurality of first elastic sealing rings 35 and the plurality of sealing ring pressing pads 36 are arranged alternately, and under the action of the pressing ring 37, the inner wall of the first elastic sealing ring 35 is in sealing fit with the outer wall of the sliding shaft 31, and the outer wall of the first elastic sealing ring 35 is in sealing fit with the inner wall of the fixed sleeve 33. The compression adjusting piece 38 is an adjusting bolt, a threaded hole is formed in the fixing sleeve 33, an adjusting through hole is formed in the compression ring 37, the compression adjusting piece 38 passes through the adjusting through hole and then is matched with the threaded hole, and the end portion of the compression ring 37 acts on the first elastic sealing ring 35 or the sealing ring pressing pad 36. This arrangement provides a better seal at the sliding aperture 39.
In some embodiments, the rotary seal assembly comprises a rotary seal ball 41, a rotary seal bowl 42, a compression bowl 43 and a second elastic seal ring 44, a rotary hole 45 matched with the rotary shaft 32 is formed in a seal plate between the plenum chamber 2 and the power chamber 3, the rotary seal bowl 42 matched with the rotary hole 45 is arranged on the seal plate in a sealing manner, the compression bowl 43 matched with the rotary seal bowl 42 is arranged on the rotary seal bowl 42, the rotary seal bowl 42 and the compression bowl 43 are both coaxially arranged with the rotary shaft 32, a rotary through hole 46 penetrating through and in clearance fit with the rotary shaft 32 is formed in the bottom of the rotary seal bowl 42 and the bottom of the compression bowl 43, a rotary seal cavity is formed between the rotary seal bowl 42 and the compression bowl 43, the rotary seal ball 41 is arranged in the rotary seal cavity and matched with the rotary seal cavity, the rotary seal ball 41 is coaxially and fixedly arranged on the rotary shaft 32, a plurality of second elastic seal rings 44 matched with the rotary seal ball 41 in a sealing manner are fixedly arranged on the inner wall of the rotary seal cavity in a sealing manner, and the second elastic seal rings 44 are coaxially arranged with the rotary seal ball 41. In the technical scheme, the pressing bowl 43 and the rotary sealing bowl 42 are arranged to facilitate the installation of the second elastic sealing ring 44 and the rotary sealing ball 41, and the rotary sealing ball 41 forms spherical sealing with the pressing bowl 43 and the rotary sealing bowl 42 respectively through the second elastic sealing ring 44. The rotary seal bowl 42 is sealingly disposed over the rotary bore 45 by welding. The second elastic sealing ring 44 is provided with a plurality of groups, so that the sealing effect is better.
In some embodiments, the ground wire means comprises a first ground wire 47, a second ground wire 48 and a third ground wire 49, the first ground wire 47 being connected to the upper wire insulation terminal 8, the second ground wire 48 being connected to the lower wire insulation terminal 9, the third ground wire 49 being connected to the outer protective layer 21. In this technical scheme, first earth connection 47, second earth connection 48 and third earth connection 49 ground respectively for the cable arrangement's shell is uncharged, eliminates cable arrangement and causes the potential safety hazard to the operating personnel.
In some embodiments, the third connection terminal 7 is provided with a fixing collar 50, and the fourth mounting hole 28 is provided with a fixing groove 51 matched with the fixing collar 50. In this technical scheme, fixed bulge loop 50 coaxial fixed setting is in on the third binding post 7, and fixed slot 51 coaxial fixed setting is in fourth mounting hole 28, and when fixed bulge loop 50 card was gone into in fixed slot 51, closely connect between lower wiring insulating terminal 9 and the third binding post 7 and not separate, and the electricity is in the same place between three binding posts 7 and the lower conducting terminal 13 at this moment. The third wiring terminal 7 and the lower wiring insulating terminal 9 are separated and combined by manual pulling and inserting.
In some embodiments, the power device comprises a push-pull assembly 52 and a rotating assembly 53, wherein the push-pull assembly 52 is fixedly arranged in the power chamber 3 and is connected with the sliding shaft 31, and the rotating assembly 53 is fixedly arranged in the power chamber 3 and is connected with the rotating shaft 32. In this technical scheme, push-pull subassembly 52 and rotating subassembly 53 are prior art equipment, and the effect of rotating subassembly 53 is the drive axis of rotation 32 rotation, and axis of rotation 32 drives switch assembly 30 and realizes opening or closing, and the effect of push-pull subassembly 52 is the quick slip of drive sliding shaft 31 along its length direction to make arc extinguishing subassembly 29 realize quick disconnection or closure.
In some embodiments, the PT device comprises a voltage transformer 54, the voltage transformer 54 is fixedly arranged at the bottom of the PT chamber 4, and the third wiring terminal 7 is fixedly connected with the voltage transformer 54 in a sealing manner. In this technical solution, the voltage transformer 54 is in the prior art, the inner end of the third connecting terminal 7 is fixedly arranged on the voltage transformer 54, the voltage transformer 54 is used for transforming the voltage on the line, and the purpose of the voltage transformer is mainly to supply power to the measuring instrument and the relay protection device, to measure the voltage, the power and the electric energy of the line, and to protect the valuable equipment in the line when the line fails.
In some embodiments, a lightning arrester 55 is fixedly arranged on the partition plate between the plenum chamber 2 and the PT chamber 4 in a sealing way, and the upper end of the lightning arrester 55 is electrically connected with the upper end of the second wiring terminal 6. In this technical scheme, the arrester 55 is in the prior art, and the arrangement of the arrester 55 can eliminate overvoltage in the PT cabinet.
In some embodiments, a high temperature resistant sealing coating 56 is provided on the inner wall of the plenum chamber 2. In the technical scheme, the high-temperature resistant sealing coating 56 adopts 1280 ℃ high-temperature resistant sealing glue in the prior art, and the sealing effect of the plenum chamber 2 is better at a certain temperature.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (10)
1. An inflatable multifunctional PT cabinet which is characterized in that: the intelligent switching device comprises a cabinet body (1), a plenum chamber (2), a power chamber (3), a PT chamber (4), a switching-on and switching-off device, a power device, a PT device and a cable device, wherein the PT chamber (4) is arranged at the bottom of the cabinet body (1), the plenum chamber (2) and the power chamber (3) are arranged on the upper side of the PT chamber (4) in parallel, the switching-on and switching-off device is fixedly arranged in the plenum chamber (2) in a sealing manner, the power device is fixedly arranged in the power chamber (3) and is used for driving the switching-on and switching-off device to realize switching-on and switching-off, a first wiring terminal (5) is fixedly arranged at the top of the plenum chamber (2) in a sealing manner, a second wiring terminal (6) is fixedly arranged on a partition plate between the plenum chamber (2) and the PT chamber (4) in a sealing manner, the lower end of the second wiring terminal (6) is electrically connected with the lower wiring terminal (7) through the cable device, and the cable device is connected with the upper wiring device;
the cable device comprises an upper wiring insulating terminal (8), a lower wiring insulating terminal (9), a sealing plug-in terminal (10), an insulating terminal protective layer (11), an upper conducting terminal (12), a lower conducting terminal (13), a hollow conducting tube (14), a conducting wire (15), a winding layer (16), an inner insulating layer (17), a metal shielding layer (18), an outer insulating layer (19), a high-temperature resistant fireproof layer (20), an outer protective layer (21) and a sealing winding package component, wherein a first mounting hole (22) penetrating through and matched with the lower end of the second connecting terminal (6) is arranged on the upper wiring insulating terminal (8), an external connecting cable (23) is electrically connected with the second connecting terminal (6) through the first mounting hole (22), one end of the upper conducting terminal (12) is arranged in the first mounting hole (22) and matched with the second connecting terminal (6), the other end of the upper conducting terminal (12) is sealed at the bottom of the second mounting hole (24), the second mounting hole (24) is arranged at the bottom of the second mounting hole (24), the upper conducting terminal (8) is arranged on the conducting wire (14) and the hollow conducting tube (14) is parallel to the conducting wire (14), the electric conduction layer is coated by the winding layer (16) for fastening, the inner insulation layer (17) is arranged on the outer side of the winding layer (16), the metal shielding layer (18), the outer insulation layer (19), the high-temperature-resistant fireproof layer (20) and the outer protection layer (21) are sequentially arranged on the outer side of the inner insulation layer (17), one end of the electric conduction layer is arranged in a first electric conduction hole (25) on the upper electric conduction terminal (12), one end of the outer protection layer (21) is fixed in a second installation hole (24) through the sealing plug terminal (10), the other end of the electric conduction layer is arranged in a second electric conduction hole (26) on the lower electric conduction terminal (13), the lower electric conduction terminal (13) is fixedly arranged in a third installation hole (27) in a sealing mode, the outer protection layer (21) is arranged in the third installation hole (27), the third installation hole (27) is arranged on the lower electric conduction terminal (9), the lower electric conduction terminal (9) is fixedly arranged in the second installation hole (26), and is in communication with the third installation hole (28) of the third electric conduction terminal (13), the upper sealing and fixing sleeve of the lower wiring insulating end (9) is provided with the insulating end protecting layer (11), and the sealing winding package assembly is arranged between the insulating end protecting layer (11) and the outer protecting layer (21).
2. The inflatable multifunctional PT cabinet of claim 1, wherein: the switching-on/off device comprises an arc extinguishing assembly (29) and a switch assembly (30), wherein an upper wiring end of the arc extinguishing assembly (29) is electrically connected with the lower end of the first wiring terminal (5), a lower wiring end of the arc extinguishing assembly (29) is electrically connected with an upper wiring end of the switch assembly (30), a lower wiring end of the arc extinguishing assembly (29) is electrically connected with the second wiring terminal (6), the arc extinguishing assembly (29) is connected with the power device through a sliding shaft (31), the switch assembly (30) is connected with the power device through a rotating shaft (32), a sliding sealing assembly is arranged between the sliding shaft (31) and the plenum chamber (2), and a rotating sealing assembly is arranged between the rotating shaft (32) and the plenum chamber (2).
3. The inflatable multifunctional PT cabinet of claim 2, wherein: the sliding seal assembly comprises a fixed sleeve (33), a heat insulation ring (34), a first elastic sealing ring (35), a sealing ring pressing pad (36), a pressing ring (37) and a pressing adjusting piece (38), a sliding hole (39) matched with the sliding shaft (31) is formed in a sealing plate between the plenum chamber (2) and the power chamber (3), the fixed sleeve (33) matched with the sliding hole (39) is arranged on the sealing plate in a sealing mode, the fixed sleeve (33) is arranged in the power chamber (3), the heat insulation ring (34), the first elastic sealing ring (35) and the sealing ring pressing pad (36) are sleeved on the sliding shaft (31) and are positioned in the fixed sleeve (33), the heat insulation ring (34) is arranged close to the side of the sealing plate, the inner wall of the pressing ring (37), the inner wall of the heat insulation ring (34) and the inner wall of the sealing ring pressing pad (36) are in clearance fit with the outer wall of the sliding shaft (31), the outer wall of the pressing ring (37), the outer wall of the sealing ring pressing ring (34), the outer wall of the sealing ring pressing pad (36) and the elastic sealing ring (36) are in contact with the elastic sealing ring (33), one end of the compression ring (37) is propped against the first elastic sealing ring (35) or the sealing ring compression pad (36), and the other end of the compression ring (37) is connected with the fixed sleeve (33) through at least two uniformly arranged compression adjusting pieces (38).
4. A multifunctional inflatable PT cabinet as claimed in any one of claims 2 or 3, characterized in that: the rotary sealing assembly comprises a rotary sealing ball (41), a rotary sealing bowl (42), a pressing bowl (43) and a second elastic sealing ring (44), a rotary hole (45) matched with the rotary shaft (32) is formed in a sealing plate between the plenum chamber (2) and the power chamber (3), the rotary sealing bowl (42) matched with the rotary hole (45) is arranged on the sealing plate in a sealing mode, the pressing bowl (43) matched with the rotary sealing bowl (42) in a sealing mode is arranged on the rotary sealing bowl (42), the rotary sealing bowl (42) and the pressing bowl (43) are coaxially arranged with the rotary shaft (32), a rotary through hole (46) penetrating through the bottom of the rotary sealing bowl (42) and the bottom of the pressing bowl (43) and in clearance fit with the rotary shaft (32) are formed in a sealing mode, the rotary sealing ball (41) is arranged in the rotary sealing cavity and matched with the rotary sealing bowl (45), the rotary sealing ball (41) is coaxially arranged on the rotary sealing bowl (41) and the rotary sealing ball (32) in a sealing mode, the rotary sealing ball (41) is fixedly arranged on the inner wall (32), the second elastic sealing ring (44) is in sealing fit with the rotary sealing ball (41) and is coaxially arranged with the rotary shaft (32).
5. A multifunctional inflatable PT cabinet as claimed in any one of claims 1-3, characterized in that: the grounding wire device comprises a first grounding wire (47), a second grounding wire (48) and a third grounding wire (49), wherein the first grounding wire (47) is connected with the upper wiring insulation end socket (8), the second grounding wire (48) is connected with the lower wiring insulation end socket (9), and the third grounding wire (49) is connected with the outer protection layer (21).
6. A multifunctional inflatable PT cabinet as claimed in any one of claims 1-3, characterized in that: the third wiring terminal (7) is provided with a fixing convex ring (50), and the fourth mounting hole (28) is provided with a fixing groove (51) matched with the fixing convex ring (50).
7. An inflatable multifunctional PT cabinet as claimed in claim 3, characterized in that: the power device comprises a push-pull assembly (52) and a rotating assembly (53), wherein the push-pull assembly (52) is fixedly arranged in the power chamber (3) and connected with the sliding shaft (31), and the rotating assembly (53) is fixedly arranged in the power chamber (3) and connected with the rotating shaft (32).
8. A multifunctional inflatable PT cabinet as claimed in any one of claims 1-3, characterized in that: the PT device comprises a voltage transformer (54), the voltage transformer (54) is fixedly arranged at the bottom of the PT chamber (4), and the third wiring terminal (7) is fixedly connected with the voltage transformer (54) in a sealing manner.
9. A multifunctional inflatable PT cabinet as claimed in any one of claims 1-3, characterized in that: and a lightning arrester (55) is fixedly arranged on the partition plate between the plenum chamber (2) and the PT chamber (4) in a sealing way, and the upper end of the lightning arrester (55) is electrically connected with the upper end of the second wiring terminal (6).
10. A multifunctional inflatable PT cabinet as claimed in any one of claims 1-3, characterized in that: the inner wall of the plenum chamber (2) is provided with a high-temperature resistant sealing coating (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310387023.1A CN116131150B (en) | 2023-04-12 | 2023-04-12 | Inflatable multifunctional PT cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310387023.1A CN116131150B (en) | 2023-04-12 | 2023-04-12 | Inflatable multifunctional PT cabinet |
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| CN116131150A true CN116131150A (en) | 2023-05-16 |
| CN116131150B CN116131150B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310387023.1A Active CN116131150B (en) | 2023-04-12 | 2023-04-12 | Inflatable multifunctional PT cabinet |
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| CN117791189A (en) * | 2024-02-28 | 2024-03-29 | 广东信通通信有限公司 | Portable power supply connecting device |
| CN117913690A (en) * | 2024-03-20 | 2024-04-19 | 四川电器集团中低压智能配电有限公司 | New forms of energy switchgear |
| CN117995573B (en) * | 2024-04-03 | 2024-06-04 | 四川电器集团中低压智能配电有限公司 | Tank-type environment-friendly gas-insulated switchgear |
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| CN116131150B (en) | 2023-06-27 |
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